Cardiff Council's 'Usual Suspects' campaign carries the message: "There's no excuse for dropping litter."
The anti-grime crackdown will focus on three main points:
- Dog fouling
- Fly tipping
The council's waste team is also telling dog owners there is a fine of £75 if caught not cleaning up after their dogs.
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Tonight will remain mostly dry apart from the odd shower in places.
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71-year-old Raymond Hodges was convicted of 24 charges spanning almost a decade.